WO2019127155A1 - Procédé et dispositif de rétroaction d'informations et support d'enregistrement informatique - Google Patents

Procédé et dispositif de rétroaction d'informations et support d'enregistrement informatique Download PDF

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Publication number
WO2019127155A1
WO2019127155A1 PCT/CN2017/119138 CN2017119138W WO2019127155A1 WO 2019127155 A1 WO2019127155 A1 WO 2019127155A1 CN 2017119138 W CN2017119138 W CN 2017119138W WO 2019127155 A1 WO2019127155 A1 WO 2019127155A1
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WIPO (PCT)
Prior art keywords
terminal
value
feedback
transmission resource
reference signal
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Ceased
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PCT/CN2017/119138
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English (en)
Chinese (zh)
Inventor
唐海
林晖闵
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to PCT/CN2017/119138 priority Critical patent/WO2019127155A1/fr
Priority to KR1020207021750A priority patent/KR20200103779A/ko
Priority to AU2017444387A priority patent/AU2017444387A1/en
Priority to EP17936210.8A priority patent/EP3734882B1/fr
Priority to JP2020535551A priority patent/JP2021513766A/ja
Priority to CN201780098013.9A priority patent/CN111527720B/zh
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to CN202510715690.7A priority patent/CN120528572A/zh
Publication of WO2019127155A1 publication Critical patent/WO2019127155A1/fr
Priority to US16/914,249 priority patent/US11677523B2/en
Anticipated expiration legal-status Critical
Priority to US18/138,039 priority patent/US12218870B2/en
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0417—Feedback systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0623—Auxiliary parameters, e.g. power control [PCB] or not acknowledged commands [NACK], used as feedback information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
    • H04L1/0675—Space-time coding characterised by the signaling
    • H04L1/0693—Partial feedback, e.g. partial channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to an information feedback method and apparatus, and a computer storage medium.
  • the vehicle networking system adopts a Long Term Evolution (LTE)-to-device (D2D, Device to Device) side-link (SL, Sidelink) transmission technology, and the communication data is received by the base station in a conventional LTE system or Different ways of sending, the vehicle networking system uses the terminal-to-terminal direct communication method, so it has higher spectral efficiency and lower transmission delay.
  • LTE Long Term Evolution
  • D2D Device to Device
  • SL Sidelink
  • V2X Vehicle-to-Everything
  • mode 3 the transmission resources of the terminal are allocated by the base station.
  • mode 4 the terminal determines the transmission resource by means of sensing + reservation.
  • a multi-antenna transmission technology needs to be introduced in the NR-V2X.
  • how the transmitting end selects the optimal beam among the multiple candidate beams is based on the index value of the optimal beam fed back by the receiving end. definite.
  • NR-V2X needs to support various transmission methods, such as unicast, groupcast, and broadcast.
  • the receiving end feedback acknowledgement (ACK)/non-acknowledgement (NACK) information and the channel quality indicator (CQI, Channel Quality Indicator) information are required, and the transmitting end can perform modulation and coding strategies according to the feedback information of the receiving end (MCS, Modulation). And Coding Scheme) adjusts and determines whether retransmission is required.
  • MCS Modulation
  • Coding Scheme adjusts and determines whether retransmission is required.
  • an embodiment of the present invention provides an information feedback method and apparatus, and a computer storage medium.
  • the first terminal receives the N sets of reference signals sent by the second terminal, where N is a positive integer, where the transmission resources of the reference signals between the different groups are time-division;
  • the first terminal selects a target reference signal based on the received N sets of reference signals
  • the first terminal sends index information of the target reference signal to the second terminal, where the index information is carried in a feedback channel.
  • the value of the N is indicated based on a control channel of the second terminal.
  • the value of N is determined based on a preset configuration
  • the value of N is determined based on the configuration of the base station.
  • each group of reference signals includes M time domain symbols, and M is a positive integer
  • the value of the M is indicated based on a control channel of the second terminal.
  • the value of the M is determined based on a preset configuration
  • the value of M is determined based on the configuration of the base station.
  • the transmission resource of the control channel and the transmission resource of the reference signal of the second terminal are time-division.
  • control channel of the second terminal is not transmitted by using a beamforming manner.
  • the reference signal of the second terminal is transmitted by using a beamforming manner.
  • the feedback channel further includes at least one of the following: identifier information of the first terminal, and identifier information of the second terminal.
  • the feedback channel includes K time domain symbols, and K is a positive integer
  • K is indicated based on a control channel of the first terminal.
  • the value of K is determined based on a preset configuration
  • the value of K is determined based on the configuration of the base station.
  • the first terminal sends the index information of the target reference signal to the second terminal, including:
  • the first terminal sends N feedback channels to the second terminal to transmit index information of the target reference signal N times.
  • the method further includes:
  • the first terminal performs resource sensing, determines at least one available resource, and selects a transmission resource for transmitting the feedback channel from the at least one available resource.
  • the transmission resource of the feedback channel is indicated by a control channel of the first terminal.
  • the method further includes:
  • the first terminal determines a transmission resource for transmitting the feedback channel based on a transmission resource of the reference signal.
  • the transmission resource of the control channel of the first terminal and the transmission resource of the feedback channel are time-division.
  • the second terminal sends N sets of reference signals to the first terminal, where N is a positive integer, where the transmission resources of the reference signals between different groups are time-division;
  • the second terminal receives index information of a target reference signal sent by the first terminal, where the index information is carried in a feedback channel.
  • the value of the N is indicated based on a control channel of the second terminal.
  • the value of N is determined based on a preset configuration
  • the value of N is determined based on the configuration of the base station.
  • each group of reference signals includes M time domain symbols, and M is a positive integer
  • the value of the M is indicated based on a control channel of the second terminal.
  • the value of the M is determined based on a preset configuration
  • the value of M is determined based on the configuration of the base station.
  • the transmission resource of the control channel and the transmission resource of the reference signal of the second terminal are time-division.
  • control channel of the second terminal is not transmitted by using a beamforming manner.
  • the reference signal of the second terminal is transmitted by using a beamforming manner.
  • the feedback channel further includes at least one of the following: identifier information of the first terminal, and identifier information of the second terminal.
  • the feedback channel includes K time domain symbols, and K is a positive integer
  • K is indicated based on a control channel of the first terminal.
  • the value of K is determined based on a preset configuration
  • the value of K is determined based on the configuration of the base station.
  • the second terminal receives the index information of the target reference signal sent by the first terminal, and includes:
  • the second terminal receives N feedback channels sent by the first terminal, where the feedback channel includes the index information.
  • the method further includes:
  • the second terminal receives control information of the first terminal, and determines, according to control information of the first terminal, a transmission resource used for transmitting the feedback channel.
  • the method further includes:
  • the second terminal determines a transmission resource for transmitting the feedback channel based on a transmission resource of the reference signal.
  • a receiving unit configured to receive N sets of reference signals sent by the second terminal, where N is a positive integer, where transmission resources of reference signals between different groups are time-division;
  • a selecting unit configured to select a target reference signal based on the received N sets of reference signals
  • a sending unit configured to send, to the second terminal, index information of the target reference signal, where the index information is carried in a feedback channel.
  • the value of the N is indicated based on a control channel of the second terminal.
  • the value of N is determined based on a preset configuration
  • the value of N is determined based on the configuration of the base station.
  • each group of reference signals includes M time domain symbols, and M is a positive integer
  • the value of the M is indicated based on a control channel of the second terminal.
  • the value of the M is determined based on a preset configuration
  • the value of M is determined based on the configuration of the base station.
  • the transmission resource of the control channel and the transmission resource of the reference signal of the second terminal are time-division.
  • control channel of the second terminal is not transmitted by using a beamforming manner.
  • the reference signal of the second terminal is transmitted by using a beamforming manner.
  • the feedback channel further includes at least one of the following: identifier information of the first terminal, and identifier information of the second terminal.
  • the feedback channel includes K time domain symbols, and K is a positive integer
  • K is indicated based on a control channel of the first terminal.
  • the value of K is determined based on a preset configuration
  • the value of K is determined based on the configuration of the base station.
  • the sending unit is configured to send N feedback channels to the second terminal to transmit index information of the target reference signal N times.
  • the device further includes:
  • a resource listening unit configured to perform resource sensing, determine at least one available resource, and select a transmission resource used to transmit the feedback channel from the at least one available resource.
  • the transmission resource of the feedback channel is indicated by a control channel of the first terminal.
  • the device further includes:
  • a resource determining unit configured to determine, according to a transmission resource of the reference signal, a transmission resource used for transmitting the feedback channel.
  • the transmission resource of the control channel of the first terminal and the transmission resource of the feedback channel are time-division.
  • a sending unit configured to send, to the first terminal, N sets of reference signals, where N is a positive integer, where transmission resources of reference signals between different groups are time-division;
  • a receiving unit configured to receive index information of the target reference signal sent by the first terminal, where the index information is carried in a feedback channel.
  • the value of the N is indicated based on a control channel of the second terminal.
  • the value of N is determined based on a preset configuration
  • the value of N is determined based on the configuration of the base station.
  • each group of reference signals includes M time domain symbols, and M is a positive integer
  • the value of the M is indicated based on a control channel of the second terminal.
  • the value of the M is determined based on a preset configuration
  • the value of M is determined based on the configuration of the base station.
  • the transmission resource of the control channel and the transmission resource of the reference signal of the second terminal are time-division.
  • control channel of the second terminal is not transmitted by using a beamforming manner.
  • the reference signal of the second terminal is transmitted by using a beamforming manner.
  • the feedback channel further includes at least one of the following: identifier information of the first terminal, and identifier information of the second terminal.
  • the feedback channel includes K time domain symbols, and K is a positive integer
  • K is indicated based on a control channel of the first terminal.
  • the value of K is determined based on a preset configuration
  • the value of K is determined based on the configuration of the base station.
  • the receiving unit is configured to receive N feedback channels sent by the first terminal, where the feedback channel includes the index information.
  • the device further includes: a determining unit, configured to receive control information of the first terminal, and determine, according to control information of the first terminal, a transmission resource used for transmitting the feedback channel.
  • the apparatus further includes: a determining unit, configured to determine, according to a transmission resource of the reference signal, a transmission resource used for transmitting the feedback channel.
  • the computer storage medium provided by the embodiment of the present invention has stored thereon computer executable instructions, and the computer executable instructions are implemented by the processor to implement the above information feedback method.
  • the first terminal receives the N sets of reference signals sent by the second terminal, where N is a positive integer, where the transmission resources of the reference signals between different groups are time-division; the first terminal is based on The received N sets of reference signals select a target reference signal; the first terminal sends index information of the target reference signal to the second terminal, where the index information is carried in a feedback channel.
  • the second terminal sends N sets of reference signals by means of beam scanning, and the first terminal sends the index information of the target reference signals (ie, beam index information) to the second terminal by using the newly designed feedback channel.
  • the first terminal repeatedly sends the feedback channel N times, so that the receiving end can receive the index information by using N different beams, thereby ensuring the receiving performance.
  • FIG. 1 is a schematic diagram of a scenario of mode 3 in a car network
  • FIG. 2 is a schematic diagram of a scenario of mode 4 in a car network
  • FIG. 3 is a schematic flowchart 1 of an information feedback method according to an embodiment of the present invention.
  • FIG. 4 is a second schematic flowchart of an information feedback method according to an embodiment of the present invention.
  • FIG. 5 is a first schematic structural diagram of an information feedback apparatus according to an embodiment of the present invention.
  • FIG. 6 is a second structural diagram of an information feedback apparatus according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a computer device according to an embodiment of the present invention.
  • the transmission resource of the in-vehicle terminal is allocated by a base station (such as an evolved NodeB (eNB) in LTE). Specifically, the base station transmits the vehicle to the vehicle through a downlink (DL, Down Link). The terminal sends a control message for indicating the Grant resource; then, the vehicle terminal transmits the data on the SL according to the resource allocated by the base station.
  • the base station may allocate a single transmission resource for the vehicle terminal, or may allocate a semi-static transmission resource for the terminal.
  • the vehicle terminal adopts a transmission mode of listening and reservation.
  • the vehicle terminal acquires an available transmission resource set by means of interception in the resource pool, and the vehicle terminal randomly selects one resource from the transmission resource set for data transmission. Since the service in the car network system has periodic characteristics, the vehicle terminal usually adopts a semi-static transmission mode, that is, after the vehicle terminal selects one transmission resource, the resource is continuously used in multiple transmission cycles, thereby reducing the resource weight.
  • the probability of selection and resource conflicts The vehicle terminal carries information for reserving the next transmission resource in the control information of the current transmission, so that other terminals can determine whether the resource is reserved and used by the vehicle terminal by detecting the control information of the vehicle terminal. The purpose of resource conflicts.
  • mode 3 is used to indicate that the transmission resource of the in-vehicle terminal is allocated by the base station
  • mode 4 indicates that the transmission resource of the in-vehicle terminal is selected by the terminal autonomously.
  • NR-V2X a new definition can be defined.
  • the transmission mode is not limited by the present invention.
  • Beamforming technology can concentrate energy in a narrow beam, thus improving the signal-to-interference ratio (SINR) of the receiver. Ratio), thereby increasing the probability of receiving success at the receiving end or increasing the transmission distance.
  • SINR signal-to-interference ratio
  • the coverage and reliability can be improved by Beamforming.
  • the transmitting end needs to perform beam scanning, and respectively uses different beams for transmission; the receiving end respectively receives The data transmitted by each beam, so that a beam with the best transmission quality can be selected as the optimal beam, and the index value of the beam is fed back to the transmitting end; in the subsequent data transmission, the transmitting end can use the optimal beam. data transmission.
  • the receiving end needs to feed back the index value of the beam to the transmitting end, and how to perform beam information feedback in the NR-V2X is a problem to be solved:
  • the terminal that sends the feedback information acquires the resource in a competitive manner
  • the terminal that receives the feedback information that is, the receiving end of the feedback information
  • FIG. 3 is a schematic flowchart 1 of an information feedback method according to an embodiment of the present invention. As shown in FIG. 3, the information feedback method includes:
  • Step 301 The first terminal receives the N sets of reference signals sent by the second terminal, where N is a positive integer, where the transmission resources of the reference signals between the different groups are time-division.
  • the types of the first terminal and the second terminal are not limited, and may be devices such as an in-vehicle terminal, a mobile phone, and a notebook.
  • the second terminal performs data transmission by using a beam scanning manner, and the total number of beams of the second terminal is N, and each beam scanning occupies M data symbols (that is, each group of reference signals includes M)
  • the domain symbol, M is a positive integer), so N ⁇ M symbols are required to complete a beam scan, and the first terminal receives data transmitted by beam scanning.
  • N is the total number of beams of the second terminal, or the total number of beams to be scanned by the second terminal.
  • the total number of beams N of the second terminal may be determined by:
  • the value of the N is determined based on a preset configuration
  • N is determined based on the configuration of the base station.
  • the number M of symbols occupied by each beam scan can be determined by:
  • the value of the M is determined based on a preset configuration
  • the value of the M is determined based on the configuration of the base station.
  • the transmission resource of the control channel of the second terminal and the transmission resource of the reference signal are time-division. Further, the control channel of the second terminal does not use beamforming to transmit. The reference signal of the second terminal is transmitted by using beamforming.
  • control channel and the data channel of the second terminal are transmitted by using Time Division Multiplexing (TDM).
  • TDM Time Division Multiplexing
  • FDM Frequency Division Multiplexing
  • Step 302 The first terminal selects a target reference signal based on the received N sets of reference signals.
  • the first terminal after receiving the N sets of reference signals sent by the second terminal according to the beam scanning manner, the first terminal selects one of the N sets of reference signals (corresponding to N beams) as the reference signal with the best transmission quality.
  • the optimal reference signal that is, the target reference signal.
  • Step 303 The first terminal sends index information of the target reference signal to the second terminal, where the index information is carried in a feedback channel.
  • a new channel is designed, that is, the feedback channel is used to transmit index information of the target reference signal.
  • the feedback channel can also be used to carry other feedback information, such as ACK/NACK information, Channel Quality Indicator (CQI) information, and Precoding Matrix Indicator (PMI) information. , RI (Rank Indication) information, power indication information, and the like.
  • the feedback channel further includes at least one of the following: identifier information of the first terminal, and identifier information of the second terminal.
  • the feedback channel includes K time domain symbols, and K is a positive integer; wherein the number K of symbols occupied by the feedback channel can be determined by:
  • the value of the K is determined based on a preset configuration
  • K is determined based on the configuration of the base station.
  • the first terminal sends N feedback channels to the second terminal to transmit index information of the target reference signal N times.
  • each feedback channel occupies K symbols, so the total number of symbols occupied by the feedback channel is N ⁇ K, where N is the total number of beams of the second terminal.
  • the first terminal sends the N feedback channels to the second terminal.
  • the second terminal uses the N beam to align with the second terminal to receive N feedback channels.
  • One beam corresponds to the reception of one feedback channel.
  • the transmission resource of the feedback channel may be determined by:
  • Manner 1 The feedback resources of the first terminal are obtained by means of interception.
  • the first terminal performs resource sensing, determines at least one available resource, and selects a transmission resource used for transmitting the feedback channel from the at least one available resource. Further, the transmission resource of the feedback channel is indicated by a control channel of the first terminal.
  • Manner 2 The feedback resource of the first terminal is determined by the transmission resource of the data sent by the second terminal.
  • the first terminal determines, according to a transmission resource of the reference signal, a transmission resource used for transmitting the feedback channel.
  • a transmission resource of the feedback channel may be determined by an index of a lowest physical resource block (PRB) or a minimum subband index of the reference signal.
  • PRB physical resource block
  • the time domain length of the transmission resource of the feedback channel is N ⁇ K.
  • each feedback channel occupies K symbols. If the feedback channel is transmitted N times, the total number of symbols occupied by the feedback channel is N ⁇ K.
  • the control channel in the first terminal may or may not be transmitted. If the first terminal does not transmit the control channel, the value of the K and/or the transmission resource of the feedback channel are acquired by the preset operation on the second terminal side; for example, the second terminal passes the pre- The K value is obtained by the configuration of the configuration or the configuration of the base station, and the second terminal determines the transmission resource of the feedback channel by using the transmission resource of the reference signal;
  • the value of the K and/or the transmission resource of the feedback channel are acquired by the control channel of the first terminal on the second terminal side, or The second terminal side acquires by using a preset operation; where, the transmission resource of the control channel of the first terminal and the transmission resource of the feedback channel are time-division.
  • the information feedback method includes:
  • Step 401 The second terminal sends N sets of reference signals to the first terminal, where N is a positive integer, where the transmission resources of the reference signals between different groups are time-division.
  • the second terminal performs data transmission by using a beam scanning manner, and the total number of beams of the second terminal is N, and each beam scanning occupies M data symbols (that is, each group of reference signals includes M)
  • the domain symbol, M is a positive integer), so N ⁇ M symbols are required to complete a beam scan, and the first terminal receives data transmitted by beam scanning.
  • N is the total number of beams of the second terminal, or the total number of beams to be scanned by the second terminal.
  • the total number of beams N of the second terminal may be determined by:
  • the value of the N is determined based on a preset configuration
  • N is determined based on the configuration of the base station.
  • the number M of symbols occupied by each beam scan can be determined by:
  • the value of the M is determined based on a preset configuration
  • the value of the M is determined based on the configuration of the base station.
  • the transmission resource of the control channel of the second terminal and the transmission resource of the reference signal are time-division. Further, the control channel of the second terminal does not use beamforming to transmit. The reference signal of the second terminal is transmitted by using beamforming.
  • control channel and the data channel of the second terminal are transmitted in a TDM manner. This is because if the control channel and the data channel of the second terminal are transmitted by FDM, it is difficult to implement the control channel without beamforming, and the data channel is transmitted by beamforming.
  • Step 402 The second terminal receives index information of a target reference signal sent by the first terminal, where the index information is carried in a feedback channel.
  • the feedback channel further includes at least one of the following: identifier information of the first terminal, and identifier information of the second terminal.
  • the feedback channel includes K time domain symbols, and K is a positive integer; wherein the number K of symbols occupied by the feedback channel can be determined by:
  • the value of the K is determined based on a preset configuration
  • K is determined based on the configuration of the base station.
  • the second terminal receives N times feedback channels sent by the first terminal, where the feedback channel includes the index information. Further, the second terminal receives N times of feedback channels sent by the first terminal by using N beams, where one beam corresponds to receiving a feedback channel.
  • the transmission resource of the feedback channel may be determined by:
  • Manner 1 The second terminal receives control information of the first terminal, and determines, according to control information of the first terminal, a transmission resource used for transmitting the feedback channel.
  • Manner 2 The second terminal determines, according to a transmission resource of the reference signal, a transmission resource used for transmitting the feedback channel.
  • the second terminal determines, according to a transmission resource of the reference signal, a transmission resource used for transmitting the feedback channel.
  • the transmission resource of the feedback channel may be determined by an index of the lowest PRB or an index of the lowest sub-band where the data is located.
  • FIG. 5 is a first schematic structural diagram of an information feedback apparatus according to an embodiment of the present invention. As shown in FIG. 5, the information feedback apparatus includes:
  • the receiving unit 501 is configured to receive N sets of reference signals sent by the second terminal, where N is a positive integer, where the transmission resources of the reference signals between different groups are time-division;
  • the selecting unit 502 is configured to select a target reference signal based on the received N sets of reference signals
  • the sending unit 503 is configured to send, to the second terminal, index information of the target reference signal, where the index information is carried in a feedback channel.
  • the value of the N is indicated based on a control channel of the second terminal.
  • the value of N is determined based on a preset configuration
  • the value of N is determined based on the configuration of the base station.
  • the second terminal uses the method of beam scanning to perform data transmission. It should be noted that N is the total number of beams of the second terminal, or the total number of beams to be scanned by the second terminal.
  • each set of reference signals includes M time domain symbols, and M is a positive integer;
  • the value of the M is indicated based on a control channel of the second terminal.
  • the value of the M is determined based on a preset configuration
  • the value of M is determined based on the configuration of the base station.
  • the transmission resource of the control channel of the second terminal and the transmission resource of the reference signal are time-division.
  • control channel of the second terminal does not use beamforming for transmission.
  • the reference signal of the second terminal is transmitted by using beamforming.
  • the feedback channel further includes at least one of the following: identifier information of the first terminal, and identifier information of the second terminal.
  • the feedback channel includes K time domain symbols, and K is a positive integer
  • K is indicated based on a control channel of the first terminal.
  • the value of K is determined based on a preset configuration
  • the value of K is determined based on the configuration of the base station.
  • the sending unit 503 is configured to send N feedback channels to the second terminal to transmit index information of the target reference signal N times.
  • the device further includes:
  • the resource listening unit 504 is configured to perform resource sensing, determine at least one available resource, and select a transmission resource used to transmit the feedback channel from the at least one available resource.
  • the transmission resource of the feedback channel is indicated by a control channel of the first terminal.
  • the device further includes:
  • the resource determining unit 505 is configured to determine, according to a transmission resource of the reference signal, a transmission resource used for transmitting the feedback channel.
  • the transmission resource of the control channel of the first terminal and the transmission resource of the feedback channel are time-division.
  • the implementation functions of the units in the information feedback apparatus shown in FIG. 5 can be understood by referring to the related description of the foregoing information feedback method.
  • the functions of the units in the information feedback apparatus shown in FIG. 5 can be realized by a program running on a processor, or can be realized by a specific logic circuit.
  • FIG. 6 is a schematic structural diagram of the structure of an information feedback apparatus according to an embodiment of the present invention. As shown in FIG. 6, the information feedback apparatus includes:
  • the sending unit 601 is configured to send, to the first terminal, N sets of reference signals, where N is a positive integer, where the transmission resources of the reference signals between different groups are time-division;
  • the receiving unit 603 is configured to receive index information of the target reference signal sent by the first terminal, where the index information is carried in a feedback channel.
  • the value of the N is indicated based on a control channel of the second terminal.
  • the value of N is determined based on a preset configuration
  • the value of N is determined based on the configuration of the base station.
  • the second terminal uses the method of beam scanning to perform data transmission. It should be noted that N is the total number of beams of the second terminal, or the total number of beams to be scanned by the second terminal.
  • each set of reference signals includes M time domain symbols, and M is a positive integer;
  • the value of the M is indicated based on a control channel of the second terminal.
  • the value of the M is determined based on a preset configuration
  • the value of M is determined based on the configuration of the base station.
  • the transmission resource of the control channel of the second terminal and the transmission resource of the reference signal are time-division.
  • control channel of the second terminal does not use beamforming for transmission.
  • the reference signal of the second terminal is transmitted by using beamforming.
  • the feedback channel further includes at least one of the following: identifier information of the first terminal, and identifier information of the second terminal.
  • the feedback channel includes K time domain symbols, and K is a positive integer
  • K is indicated based on a control channel of the first terminal.
  • the value of K is determined based on a preset configuration
  • the value of K is determined based on the configuration of the base station.
  • the receiving unit 603 is configured to receive N feedback channels sent by the first terminal, where the feedback channel includes the index information.
  • the apparatus further includes: a determining unit 602, configured to receive control information of the first terminal, and determine, according to control information of the first terminal, a transmission resource used for transmitting the feedback channel.
  • a determining unit 602 configured to receive control information of the first terminal, and determine, according to control information of the first terminal, a transmission resource used for transmitting the feedback channel.
  • the apparatus further includes: a determining unit 602, configured to determine, according to a transmission resource of the reference signal, a transmission resource used for transmitting the feedback channel.
  • the implementation functions of the units in the information feedback apparatus shown in FIG. 6 can be understood by referring to the related description of the foregoing information feedback method.
  • the functions of the units in the information feedback apparatus shown in Fig. 6 can be realized by a program running on a processor, or can be realized by a specific logic circuit.
  • the terminal in the embodiment of the present invention may be an in-vehicle terminal, a handheld terminal, or a palmtop computer (PDA). , Personal Digital Assistant), wearable terminals, and more.
  • PDA personal digital Assistant
  • Embodiments of the Invention may also be stored in a computer readable storage medium if implemented in the form of a software function module and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • embodiments of the invention are not limited to any specific combination of hardware and software.
  • the embodiment of the present invention further provides a computer storage medium, wherein the computer-executable instructions are stored, and the computer-executable instructions are executed by the processor to implement the information feedback method of the embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a computer device according to an embodiment of the present invention, and the computer device may be any type of terminal.
  • computer device 100 may include one or more (only one shown) processor 1002 (processor 1002 may include, but is not limited to, a Micro Controller Unit (MCU) or a programmable logic device.
  • a processing device such as an FPGA (Field Programmable Gate Array), a memory 1004 for storing data, and a transmission device 1006 for a communication function.
  • FPGA Field Programmable Gate Array
  • FIG. 7 is merely illustrative and does not limit the structure of the above electronic device.
  • computer device 100 may also include more or fewer components than shown in FIG. 7, or have a different configuration than that shown in FIG.
  • the memory 1004 can be used to store software programs and modules of application software, such as program instructions/modules corresponding to the method in the embodiment of the present invention, and the processor 1002 executes various functional applications by running software programs and modules stored in the memory 1004. And data processing, that is, to achieve the above method.
  • Memory 1004 can include high speed random access memory, and can also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory.
  • memory 1004 can further include memory remotely located relative to processor 1002, which can be connected to computer device 100 over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • Transmission device 1006 is for receiving or transmitting data via a network.
  • the network specific examples described above may include a wireless network provided by a communication provider of computer device 100.
  • the transmission device 1006 includes a Network Interface Controller (NIC) that can be connected to other network devices through a base station to communicate with the Internet.
  • the transmission device 1006 can be a radio frequency (RF) module for communicating with the Internet wirelessly.
  • NIC Network Interface Controller
  • RF radio frequency
  • the disclosed method and smart device may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separated, and the components displayed as the units may or may not be physical units, that is, may be located in one place or distributed on multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one second processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit;
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un dispositif de rétroaction d'informations et un support d'enregistrement informatique. Le procédé comprend les étapes suivantes : un premier terminal reçoit N ensembles de signaux de référence envoyés par un second terminal, N étant un nombre entier positif, et des ressources de transmission de différents ensembles de signaux de référence sont à répartition dans le temps ; le premier terminal sélectionne un signal de référence cible sur la base des N ensembles de signaux de référence reçus ; et le premier terminal envoie des informations d'index du signal de référence cible au second terminal, les informations d'index étant transportées dans un canal de rétroaction.
PCT/CN2017/119138 2017-12-27 2017-12-27 Procédé et dispositif de rétroaction d'informations et support d'enregistrement informatique Ceased WO2019127155A1 (fr)

Priority Applications (9)

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KR1020207021750A KR20200103779A (ko) 2017-12-27 2017-12-27 정보 피드백 방법 및 장치, 컴퓨터 저장 매체
AU2017444387A AU2017444387A1 (en) 2017-12-27 2017-12-27 Information feedback method and device, computer storage medium
EP17936210.8A EP3734882B1 (fr) 2017-12-27 2017-12-27 Procédé et dispositif de rétroaction d'informations et support d'enregistrement informatique
JP2020535551A JP2021513766A (ja) 2017-12-27 2017-12-27 情報フィードバック方法及び装置、コンピュータ記憶媒体
CN201780098013.9A CN111527720B (zh) 2017-12-27 2017-12-27 一种信息反馈方法及装置、计算机存储介质
PCT/CN2017/119138 WO2019127155A1 (fr) 2017-12-27 2017-12-27 Procédé et dispositif de rétroaction d'informations et support d'enregistrement informatique
CN202510715690.7A CN120528572A (zh) 2017-12-27 2017-12-27 一种信息反馈方法及装置、计算机存储介质
US16/914,249 US11677523B2 (en) 2017-12-27 2020-06-26 Information feedback method and apparatus, computer storage medium
US18/138,039 US12218870B2 (en) 2017-12-27 2023-04-22 Information feedback method and apparatus, computer storage medium

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PCT/CN2017/119138 WO2019127155A1 (fr) 2017-12-27 2017-12-27 Procédé et dispositif de rétroaction d'informations et support d'enregistrement informatique

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JP (1) JP2021513766A (fr)
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EP3734882A1 (fr) 2020-11-04
US12218870B2 (en) 2025-02-04
EP3734882A4 (fr) 2020-12-16
US20200328860A1 (en) 2020-10-15
CN120528572A (zh) 2025-08-22
AU2017444387A1 (en) 2020-08-13
CN111527720B (zh) 2025-06-13
US11677523B2 (en) 2023-06-13
JP2021513766A (ja) 2021-05-27
KR20200103779A (ko) 2020-09-02
CN111527720A (zh) 2020-08-11
US20230261822A1 (en) 2023-08-17

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